Method of manufacturing secondary battery, and secondary battery manufactured by the method

Abstract

A method of manufacturing a secondary battery, including: loading a core pack in a cavity of a mold; loading the mold on a mold receiving portion of an injection molding apparatus; and filling a molten resin in a chamber of the mold.

1 . A method of manufacturing a secondary battery, the method comprising:
 loading a core pack into a chamber of a mold;   loading the mold on a mold receiving portion of an injection molding apparatus; and   filling the chamber with a molten resin.   
     
     
         2 . The method of  claim 1 , wherein the mold comprises a plastic material. 
     
     
         3 . The method of  claim 2 , wherein the mold comprises a thermosetting resin. 
     
     
         4 . The method of  claim 1 , wherein the mold comprises Bakelite or Teflon. 
     
     
         5 . The method of  claim 1 , wherein the molten resin is a hot-melt resin. 
     
     
         6 . The method of  claim 1 , wherein the core pack comprises a pouch-shaped bare cell and a protection circuit module connected to the bare cell. 
     
     
         7 . The method of  claim 1 , wherein the loading of the core pack in the chamber of the mold comprises:
 placing the core pack in a first cavity formed in a first molding block; and   coupling the first molding block to a second molding block having a second cavity corresponding to the first cavity .   
     
     
         8 . The method of  claim 7 , wherein the coupling of the first molding block and the second molding block comprises inserting coupling protrusions extending from the second molding block into coupling holes formed in the first molding block. 
     
     
         9 . The method of  claim 1 , wherein the mold has two or more chambers. 
     
     
         10 . The method of  claim 1 , wherein the loading of the mold on the mold receiving portion comprises using a removable fastening member to secure the mold. 
     
     
         11 . The method of  claim 10 , wherein the bare cell is a lithium polymer battery. 
     
     
         12 . A secondary battery manufactured by the method of  claim 1 . 
     
     
         13 . A method of manufacturing a secondary battery, the method comprising:
 placing lithium polymer batteries and protection circuit modules in cavities of a first molding block;   coupling the first molding block to a second molding block having cavities corresponding to the cavities of the first molding block, thereby forming a mold;   loading the mold on a mold receiving portion of an injection molding apparatus; and   injecting a molten resin into the mold, so as to cover the core packs,   wherein the mold comprises Bakelite or Teflon.   
     
     
         14 . The method of  claim 13 , wherein the injecting of the molten resin comprises injecting the molten resin into a resin flow path formed in the first and second molding blocks, which extends to the first and second cavities. 
     
     
         15 . A secondary battery manufactured by the method of  claim 13 .